Sole-rounding machine.



0. H. HEATHER. SOLE ROUNDING MACHINE.

APPLICATION FILED OCT. 7, 1912.

Patented Jan. 26, 1915.

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G. H. HEATHER.

SOLE ROUNDING MACHINE. APPLIUATION'FILED 001". 7, 1912.

1,126,209. Patented Jan. 26, 1915.

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THE NORRIS PETERS C0. PIHOTOVLITHQ. \VASHINGION, u c.

llNlTE CHARLES HAROLD HEATHER, OE LEICESTER, ENGLAND, ASSIGNOR T0 UNITEDSHOE MACHINERY COMPANY, 015 PATERSON, NEW JERSEY, A CORPORATION OF NEWJERSEY.

SOLE-ROUNDING MACHINE.

To all whom it may concern:

Be it known that I, CHARLES H. HEATHER, a subject of the King ofEngland, residing at Leicester, in the county of Leicester, England,have invented certain new and useful Improvements in Sole-RoundingMachines; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

The present invention relates to machines for operating upon solesbefore they have been incorporated in a boot or shoe and moreparticularly to machines of this type which determine the contour of thesole by rounding or otherwise trimming the edge of the sole.

The object of the present invention is to provide means for enabling thesole to be quickl and accurately positioned in the proper operativerelation to the pattern and trimming knife.

With this object in view, one feature of the invention consists in theprovision in a machine of this type of a positioning device havingmember that contacts with the edge of the pattern and a sole gageadjustable relative thereto, the position of which is automaticallydetermined by the engagement of the member with the pattern edge.

A further feature of the invention consists in the combination with apattern and cooperating clamping head of a gage memher for positioningthe sole upon the pattern arranged to move out of engagement with thesole upon a downward movement of the clamping head into an operativepos' tion. l

Still further features of the invention consist in certain novelfeatures of construction, combinations and arrangements of partshereinafter described and claimed, the advantages of which will beobvious to those skilled in the art from the following description.

In the accompanying drawings illustrating the preferred form of theinvention; Figure 1 is a side elevation of a portion of a roundingmachine embodying the several features of the invention in theirpreferred form; Fig. 2 is a detail illustrating an end elevation of thesole positioning gages and actuating mechanism therefor; and Fig. 3 is aside elevation partly in section of the Specification of Letters Patent.

Patented J an. 26, 1915.

Application filed October 7, 1912. Serial N 0. 724,426.

sole positioning gages and actuating mechanism.

The illustrated embodiment of the invention is shown in connection witha machine of the type disclosed in the patent to Mayo, 882,009, March17, 1908. This machine com prises a pattern 1 which corresponds to thedesired shape of the sole and upon which the sole is supported duringthe operation of the machine. The edge of the sole is trimmed or roundedby a knife 2 which is guided by the edge of the pattern and is caused toautomatically traverse around the pattern to trim the entire sole edge.The sole, indicated at 3, is clamped in position upon the pattern by aclamping head 5 which is supported upon the lower end of a slide 6movable vertically in bearings formed in an arm 7. The vertical slide 6is actuated in the usual manner by a lever 8 pivoted at 9 in the arm 7and connected at its opposite ends to the slide 6 and to a suitabletreadle not shown. Upon depressing the treadle the clamping member ismoved downwardly to clamp the sole firmly upon the pattern in whichposition it is held during the operation of the machine.

It is desirable in order to facilitate the proper positioning of thesole upon the pattern and to enable the sole to be trimmed evenly aroundits entire edge that positioning devices be provided which shallaccurately determine the relation between the block sole and pattern. Inthe present invention the positioning device is removed from contactwith the sole and pattern upon the movement of the clamping head into anoperative position, thus allowing the knife to traverse freely aroundthe entire edge of the sole without interference with the gage. In thesimplest and most etlicient form of the invention which has yet beendevised, this is accomplished by providing suitable connections betweenthe gage member and clamping head to cause the gage member to swingoutwardly into an inoperative position upon a downward movement of thehead into engagement with the sole. In the illustrated embodiment of theinvention a. pair ofgage members 10 are provided which act inconjunction with the knife 2 to posi tion the sole at three separatepoints remote from one another. Each gage device is pivoted at 12 in abracket 13 secured to the arm I and is arranged with its lower free endresting against the edge of the pattern 1.

The upper end of the gage member 10 is connection indicated at 20 inorder that the preliminary downward movement of the clamping head 5shall not impart a. corresponding outward movement to the gage members.Vith this construction, there is a predetermined amount of lost motionin the connections between the clamping head and gage members so thatthe gage'member is not swung outwardly until the clamping member hassubstantially completed its downward movement and is in position ,toclamp the sole upon the pattern.

It is oftentimes desirable to vary the entension of the block solebeyond the edge of the pattern and to this end the positioning deviceconsists of a member for engaging the edge of the pattern and a solegage which is adjustable relative thereto. The gage member 10 isprovided at its lower end with an inturned foot 21 which contacts withthe edge of the pattern and serves to space the member 10 away from theedge of the pattern. The sole gage consists of a resilient strip 22vsecured to the gage member 10 at its upper end and contacting at itslower free end with an adjusting screw 23 threadedly mounted in the gagemember. With this construction and arrangement, the ,position of thesole edge is automatically determined with relation to the edge of thepattern when the sole is placed thereonand this relation may be variedas desired by a simple adiustment of the screw 23.

While it is preferred to employ the specific construction andarrangement of parts shown and described, it will be understood thatthis construction and arrangement is not essential exceptso far asspecified in the claims and may be changed or modified without departingfrom the broader features of the invention.

The invention having been described, what is claimed is:

1. A sole rounding machine having, in combination, a pattern, a trimmingknife, a clamping head cooperating with the pattern and a gage memberfor positioning the sole t1on.

2. A sole rounding machine havmg, 1n

an operative posicombination, a pattern, a trimming knife, a

clamping head cooperating with the pattern, a gage member forpositioning the sole upon the pattern, and connections between the gagemember and clamping head for moving the gage member out of contact withthe sole upon a movement of the clamping head into operative position.

3. A sole rounding machine having, in combination, a pattern, a trimmingknife, a clamping headcooperating with the pattern, a gage memberpivotally supported at its upper end and arranged to contact with andposition the sole at its lower free end, and means for moving the gagemember outwardly as the blank is clamped in position to avoidinterference with the trimming knife.

4. A sole rounding machine having, in combination, a pattern, a trimmingknife, a vertically movable clamping head, a gage member pivotallysupported at its upper end, means for causing the lower end of the gagemember to normally contact with the edge of the pattern, and connectionsbetween the clamping head and gage member to move the gage memberoutwardly upon a downward movement of the clamping head into operativeposition.

5. A sole rounding machine having, in combination, a pattern, a trimmingknife, a vertically movable clamping head, a gage member normallyretained in contact with the pattern, and connections between the gagemember and clamping head having a predetermined amount of lost motion tocause the gage member to remain in contact with the pattern until theclamping head has moved substantially into operative posi tion.

6. A sole rounding machine having, in combination, a pattern, a trimmingknife, a clamping head cooperating with the pattern, a gage member"having afoot at its lower end arranged to contact with .the patternedge, a resilient strip secured atone end to the gage member, and ,meansfor adjusting the free end of the strip with relation to the foot inorder to vary the position of the sole edge relative to the edge of thepat tern.

' QHARLES HAROLD EATH-an.

Witnesses:

D MQK AM 'WQETE Ion1v RICHARD LAW.

Copies of this patent may be obtained for fiv g nts each, by addresei ngthe Commissigner of IEatents,

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